I have a test Network that I'm using for my certifications. I have a domain controller, a cisco 2960 switch, a Cisco 2504 wireless controller and one access point. I have exchange 2013 running on a separate member server that's joined to the Domain.

I can't configure some of my mobile devices to connect to their activesync accounts on Exchange 2013. I have 3 mobile devices that I am using for testing.

A Samsung Galaxy S6 SM G920F

A Samsung S4 I9500

A Samsung Galaxy Tab a SMT280

The Samsung Galaxy S6 does connect to exchange, and I can configure it to log into a user account and I can send and receive email from Outlook and owa on a wired connected workstation, and a workstation connected through wi-fi.

The Samsung S4 and the Samsung Galaxy Tab A will not connect at all to to the user account on exchange. Is it possible that it’s a setting on the phone itself?

I posted this question on a different forum and this is what one of the responders suggested that I do:

I think these are Powershell commands, but I'm not totally sure how to use them. I copied the commands directly into Powershell but it gave my an error. I think I have to replace some part of the command with my information. My domain is photonics.org, and the machine name of the exchange server is EX-VM.

How exactly do I use these commands? Can someone assist me running these commands so I can try to troubleshoot this problem.

Another thing I see is the phone that DOES connect to exchange, never shows up in the mobile device access list. I can not create any device access rules. Why is that? Does it take a certain amount of time to show up? Should I see a list of all the mobile devices that have connected to exchange? I have included 2 screenshots.

Thank you for helping me. I am not an exchange administrator. I have almost no experience running exchange. The problem is, I don't know how to do the things people are suggesting I do. I am trying to learn as fast as I can. I’m just filling in until my organization can find a real exchange administrator. Yes, I am configuring the account manually. As I said, one of the mobile devices does connect. The other 2 mobile devices do not connect.

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Thank you for helping me. I am not an exchange administrator. I have almost no experience running exchange. The problem is, I don't know how to do the things people are suggesting I do. I am trying to learn as fast as I can. I’m just filling in until my organization can find a real exchange administrator. Yes, I am configuring the account manually. As I said, one of the mobile devices does connect. The other 2 mobile devices do not connect.

Thank you very much.

Seriously, read my guide. You don't have to be an Exchange Guru to read and understand my guide - and then follow it. If a mistake is done, you have a configuration backup (EnvironmentBackup.txt) that you made. Once you've verified your environment setup with my guide, and the issue still exists, post a new EnvironmentBackup2.txt for us to see to verify everything is correct and possibly spot other issues. If all goes well, you won't need to post the new txt file because your issues will just disappear and exchange will work smoothly.

Thank you for helping me. I will take a long look at the support document you sent me, and I will try to figure it out. The reason I think autodiscover may be working properly is because I have 3 test laptops that I use as workstations on my network. All 3 laptops can connect with autodiscover to their outlook accounts with no problem through a wired connection and the wi-fi. All three laptops can also send and receive email to each other, and the one mobile device that does connect. I keep thinking that the problem might be with the phones themselves. I will follow your suggestion when I get back to the IT room at 2PM.

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You're welcome. The best case scenario is that you read over it, make your EnvironmentBackup, verify using the TXT file that your system is configured properly, then you can eliminate the configuration as being the reason. From there, you can now deduce as you have that it may be the devices. Upgrade firmware, etc. and troubleshoot from there.

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The initial set to create the EnvironmentBackup.txt file - yes. Make sure you're using the Exchange Management Shell, not just 'regular powershell' - the Exchange Management Shell can be found in the Windows Menu on the Exchange Server, or by remote-connecting to it (it's easier on the server, so I won't explain how to remote connect to it).

Also, on every line that says, "resolve-DNSName", I replace DOMAIN with my domain name? This is a closed test network. The network does have an internet connection, but I don't do anything outside of the test network. The domain is a made up name, and I'm using all self signed certificates.

Since Samsung Galaxy S6 does connect to Exchange without
issue, we could know the configuration on server is correct.

Did you test with Outlook app for Android?

Did you test the same account for three devices? Please confirm
if this issue is caused by specific account. If yes, please verify the user
object permissions are not preventing connectivity issues. Is the Include
inheritable permissions from this object’s parent enabled?

I was able to install the outlook app on the two phones that will not connect to exchange. I was not able to connect the outlook app on those phones to my test network. I have tried multiple accounts on all the non connecting phones, and I was not able to connect to any of the accounts. I was able to connect to multiple exchange accounts on the phone that does connect to exchange. accounts The phones that did not connect to exchange on my test network, always gave me an error message:

Try again with network provider default APN

I tried to manually copy the APN settings from the phone that does connect to exchange to the ones that don't connect, but it did not work.

I was able to connect my personal phone to exchange on my test network. 3 out of 5 phones did connect to exchange. I think it may be something on the phones. Both devices are fairly old.